body {
    background-color: #ccc;
}

ul,
li,
ol {
    list-style: none;
}

header {
    width: 100%;
    height: 80px;
    background-image: linear-gradient(to right, #eea2a2 0%, #bbc1bf 19%, #57c6e1 42%, #b49fda 79%, #7ac5d8 100%);
    border-bottom: 1px solid #888;
    display: flex !important;
    justify-content: space-around;
}

header>div {
    flex: 1;
    overflow: hidden;

}

header .headMid {
    flex: 3;

}

header .headMid h2 {
    height: 100%;
    width: 100%;
    text-align: center;
    color: linear-gradient(to right, #eea2a2 0%, #bbc1bf 19%, #57c6e1 42%, #b49fda 79%, #7ac5d8 100%);
    white-space: nowrap;
}

header .headRight {
    display: flex;
}

header .headRight #user {
    display: inline-block;
    margin: 28px 12px;
    padding: 0 15px;
    height: 24px;
    border: 2px solid #00bdff;
    background: #00bdff;
    border-radius: 13px;
    color: #fff;
    font-size: 12px;
    line-height: 24px;
    -webkit-transition: all .2s;
    transition: all .2s;
    overflow: hidden;
}

header .headRight #exit {
    display: inline-block;
    margin: 28px 12px;
    padding: 0 15px;
    height: 24px;
    border: 2px solid rgba(102, 102, 102, 0.3);
    border-radius: 13px;
    text-align: center;
    color: #555;
    font-size: 12px;
    line-height: 24px;
    -webkit-transition: all .2s;
    transition: all .2s;
    cursor: pointer;
    overflow: hidden;
}

header .headRight #exit:hover {
    opacity: .5;
}

/* 轮播图css start */
.clearFix::after,
.clearFix::before {
    content: '';
    display: block;
    clear: both;
}

div#banner {
    width: 1200px;
    height: 470px;
    border-bottom: 1px solid #ccc;
    /* background-color: #eee; */
    margin: auto;
    display: flex;
    justify-content: space-between;
}

#banner a,
#banner a:hover,
#banner a:visited,
#banner a:link,
#banner a:active {
    text-decoration: none;
    color: #333;
}

#banner .banner {
    width: 620px;
    position: relative;
    overflow: hidden;
}

#banner .hot {
    width: 450px;
    background-color: #eee;
    padding: 20px;
}

#banner .hot h3 {
    text-align: center;
    font-weight: 900;
    color: #222;
    opacity: 0.7
}

#banner .hot ol li {
    list-style: decimal inside;
    padding-left: 45px;

}

#banner .hot ol li a {
    font-size: 18px;
    color: #222;
    line-height: 36px;
    transition: all linear .5s;
}

#banner .hot ol li a:hover {
    opacity: .7;
}

/* 对齐div左上角 宽度为5倍 高度铺满*/
#banner .banner>ul {
    /* width: 800%; */
    height: 100%;
    /* background-color: pink; */
    position: absolute;
    top: 0;
    left: 0;
}

/* 左浮动横排 */
#banner .banner>ul>li {
    width: 620px;
    height: 100%;
    float: left;
    background-color: #ddd;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    font-size: 100px;
    cursor: pointer;
}

#banner .banner>ul>li a {
    display: block;
    /* width: 100%; */
    height: 100%;
}

#banner .banner>ul>li a img {
    display: block;
    /* width: 100%; */
    height: 100%;
}

#banner .banner>ol {
    height: 20px;
    position: absolute;
    background-color: rgba(0, 0, 0, .4);
    border-radius: 10px;
    bottom: 40px;
    left: 50%;
    /* 向左校正自身宽度的一半 */
    transform: translateX(-50%);
    display: flex;
    justify-content: space-evenly;
    align-items: center;
}

#banner .banner>ol>li {
    width: 10px;
    height: 10px;
    background-color: #fff;
    border-radius: 50%;
    cursor: pointer;
}

#banner .banner>ol>li.active {
    background-color: skyblue;
}

#banner .banner>p {
    position: absolute;
    top: 50%;
    /* 向上调整自身高度的一半 */
    transform: translateY(-50%);

    display: none;
    justify-content: space-between;
    align-items: center;
    /* z-index:2; */
}

#banner .banner>.leftTabs {
    left: 0;
}

#banner .banner>.rightTabs {
    right: 0;
}

#banner .banner>p>a {
    width: 20px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    background-color: rgba(0, 0, 0, .4);
}

/* 轮播图css end */

#box {
    width: 1200px;
    margin: 10px auto 0;
    background-color: honeydew;
    /* display: flex; */
    font-size: 12px;
    overflow: hidden;
}

#box ul {
    width: 23%;
    margin: 0 12px;
    display: flex;
    flex-direction: column;
    float: left;
}

#box ul li {
    width: 100%;
    padding: 2px;
    border: 1px solid rgb(187, 187, 187);
    background-color: rgb(250, 248, 227);
    margin-bottom: 10px;
}

#box li>a {
    display: block;
    width: 100%;
    min-height: 200px;
    background-color: #fff;
}

#box a img {
    width: 100%;
}

#box div .bookTitle {
    font-size: 18px;
    padding: 10px;
    text-align: center;
    margin: 0px;
}

#box div .bookCatalog {
    padding: 10px;
}


#box div .onlineShop {

    padding: 5px 10px;
}

#box div .moreInfo {
    display: flex;
    justify-content: space-between;
    padding: 5px 10px;
}

#box div .moreInfo .bytime {
    text-align: right;
}

.goTop {
    width: 50px;
    height: 50px;
    background-color: #ddd;
    border: 1px solid #999;
    position: fixed;
    right: 50px;
    bottom: 50px;
    border-radius: 50%;
    display: none;
    font-size: 18px;
    text-align: center;
    line-height: 50px;
    cursor: pointer;
}